Opto-electric hybrid board and manufacturing method therefor

摘要

Provided are an opto-electric hybrid board which eliminates the necessity of an aligning operation of a core of an optical waveguide unit and an optical element of an electric circuit unit and which is excellent in mass-productivity, and a manufacturing method therefor. The opto-electric hybrid board includes an optical waveguide unit and an electric circuit unit having an optical element mounted thereon, the electric circuit unit being coupled to the optical waveguide unit. The optical waveguide unit includes fitting holes which are formed in a surface of an overcladding layer and are located and formed at predetermined locations with respect to one end surface of a core. The electric circuit unit includes protruding portions which fit into the fitting holes and are located and formed at predetermined locations with respect to the optical element.

主权项

1. An opto-electric hybrid board, comprising:
an optical waveguide unit; and an electric circuit unit having an optical element mounted thereon, the electric circuit unit being coupled to the optical waveguide unit, wherein the optical waveguide unit comprises:
an undercladding layer;a core for an optical path, the core being formed on a surface of the undercladding layer;an overcladding layer which covers the core; anda fitting hole for locating the electric circuit unit, the fitting hole being formed in a surface of the overcladding layer; wherein the electric circuit unit comprises:
an electric circuit board;the optical element mounted at a predetermined portion on the electric circuit board; anda protruding portion which fits into the fitting hole; wherein the fitting hole of the optical waveguide unit is located and formed at a predetermined location with respect to an end surface of the core; wherein the protruding portion of the electric circuit unit is located and formed at a predetermined location with respect to the optical element; wherein the optical waveguide unit and the electric circuit unit are coupled to each other in a state in which the protruding portion of the electric circuit unit fits into the fitting hole of the optical waveguide unit; and wherein shapes of the fitting hole and the protruding portion are non-complementary.